Can I request technical information for TPS54312MPWPREP?

Yes. Contact our team for datasheets, package information, product specifications, alternative parts and sourcing support related to TPS54312MPWPREP.

cart ()

TPS54312MPWPREP Texas Instruments product image

SOURCING SUPPORT

Need Help With TPS54312MPWPREP?

Contact our sourcing team for current stock, batch information, lead time, technical documents, alternative parts and volume pricing.

Stock & Batch Verification Confirm available quantity, date code and delivery schedule.

Alternative Part Sourcing Request compatible or replacement parts when stock is limited.

Quality & Packaging Check Confirm product condition, packaging type and shipment protection before dispatch.

Submit RFQ Contact Sales

: Supplier Verification
Supplier review and component quality inspection support.

: Technical Documents
Datasheet and specification confirmation for engineers.

: One-Stop BOM Sourcing
Multi-part procurement and shortage sourcing assistance.

Texas Instruments RFQ AVAILABLE

TPS54312MPWPREP

IC REG BUCK 1.2V 3A 20HTSSOP

Part Number: TPS54312MPWPREP

Manufacturer: Texas Instruments

Category: Voltage Regulators - DC DC Switching Regulators

Package: 20-PowerTSSOP (0.173", 4.40mm Width)

Datasheet:: TPS54312MPWPREP.pdf

Description: IC REG BUCK 1.2V 3A 20HTSSOP

Select Quantity Stock: 1,866

Request RFQ Add to RFQ List

Qty.	Unit Price	Ext. Price
1+	$7.63000	$7.63
10+	$6.03250	$60.32
25+	$5.63260	$140.82
100+	$5.20045	$520.04

Request RFQ Add to RFQ

Part Number

Quantity *

Target Price

Name *

Company *

Email *

Comments

Compare Favorite

PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

TPS54312MPWPREP Enhanced Product 3-V to 6-V Input, 3-A Output Synchronous-Buck PWM Switcher

A comprehensive technical overview of the TPS54312MPWPREP, an Enhanced Product (EP) synchronous-buck PWM switcher from Texas Instruments featuring integrated FETs for 3-A output. Covers device function, core features, electrical specifications, 20-lead HTSSOP PowerPAD package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 20-Lead HTSSOP (PWP) 3V to 6V Input

Device Classification 3-A Synchronous-Buck PWM Switcher with Integrated FETs

Part Number: TPS54312MPWPREP

Mounting Type: Surface Mount

Operating Temperature Range: -55°C to +125°C

PRODUCT OVERVIEW

What Is the TPS54312MPWPREP?

TPS54312MPWPREP is an Enhanced Product (EP) synchronous-buck PWM switcher from Texas Instruments with integrated FETs, capable of sourcing or sinking 3-A of continuous output current. The device belongs to the SWIFT™ family of DC/DC regulators and operates from a 3-V to 6-V input voltage range.[reference:0][reference:1]

The TPS54312MPWPREP is a fixed-output version that provides a regulated 1.2-V output with 1% initial accuracy.[reference:2][reference:3] The device integrates all required active components, including 60-mΩ MOSFET switches, a true high-performance voltage error amplifier, an undervoltage-lockout circuit, an internally and externally settable slow-start circuit, and a power-good output.[reference:4][reference:5]

As an Enhanced Product (EP), the device supports defense, aerospace, and high-reliability applications with a controlled baseline, one assembly/test/fabrication site, extended product life cycle, enhanced product-change notification, and full product traceability. The TPS54312MPWPREP is rated for an extended temperature range of –55°C to +125°C and is available in a thermally enhanced 20-lead HTSSOP PowerPAD™ package.[reference:6][reference:7]

3-A Output with Integrated FETs 60-mΩ MOSFET switches for high efficiency at 3-A continuous output source or sink current.

Enhanced Product (EP) Supports defense, aerospace, and high-reliability applications with controlled baseline and full traceability.

Extended Temperature Range Guaranteed operation from –55°C to +125°C for harsh environments.

DEVICE HIGHLIGHTS

Key Features and Benefits of TPS54312MPWPREP

Integrated 60-mΩ MOSFET Switches

60-mΩ MOSFET switches provide high efficiency at 3-A continuous output source or sink current, reducing external component count and board area.[reference:8]

Fixed 1.2-V Output with 1% Accuracy

Fixed 1.2-V output voltage with 1% initial accuracy, ideal for powering FPGAs, DSPs, ASICs, and microprocessors.[reference:9][reference:10]

Flexible PWM Frequency Options

Wide PWM frequency options: fixed 350 kHz, 550 kHz, or adjustable 280 kHz to 700 kHz for optimization of efficiency or component size.[reference:11][reference:12]

Comprehensive Protection Features

Load protected by peak current limit and thermal shutdown with cycle-by-cycle current limiting and 150°C thermal shutdown.[reference:13][reference:14]

Extended Temperature Range

Rated for –55°C to +125°C operating temperature range with controlled baseline and full product traceability.[reference:15][reference:16]

Thermally Enhanced HTSSOP Package

Available in a 20-lead HTSSOP PowerPAD™ (PWP) package with exposed thermal pad for efficient heat dissipation without bulky heat sinks.[reference:17][reference:18]

REFERENCE DATA

Technical Specifications for TPS54312MPWPREP

Part Number	TPS54312MPWPREP	Manufacturer	Texas Instruments
Base Part Number	TPS54312-EP	Device Type	Synchronous-Buck PWM Switcher with Integrated FETs
Input Voltage (VIN)	3 V to 6 V	Output Voltage (Fixed)	1.2 V
Output Current	3 A	Output Accuracy	±1% Initial
Integrated MOSFETs	60 mΩ	Switching Frequency	350 kHz / 550 kHz / 280–700 kHz
Soft-Start Time	4.5 ms (Internal)	UVLO Threshold (Start)	2.95 V
UVLO Threshold (Stop)	2.8 V	Thermal Shutdown	150°C
Package	20-Lead HTSSOP (PWP)	Package Body Size	6.50 mm × 4.40 mm
Package Carrier Quantity	2,000 per Reel	MSL Rating	Level-2-260C-1 YEAR
Mounting Type	Surface Mount	Operating Temperature	-55°C to +125°C
Lead Finish	CU NIPDAU	RoHS	Yes (Green)

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for TPS54312MPWPREP

Configuration & Operation

The TPS54312MPWPREP offers flexible configuration options:

Fixed Output Voltage: 1.2-V fixed output with 1% initial accuracy, requiring no external feedback divider[reference:19][reference:20]
Frequency Selection: Selectable fixed 350 kHz or 550 kHz via FSEL pin, or adjustable 280 kHz to 700 kHz via external resistor on RT pin[reference:21][reference:22]
Slow-Start/Enable: SS/ENA pin provides enable control and adjustable slow-start with external capacitor[reference:23]
Power-Good Output: Open-drain power-good output for processor reset, fault signaling, or supply sequencing[reference:24][reference:25]
UVLO: Internal undervoltage lockout with 2.95-V start and 2.8-V stop thresholds[reference:26][reference:27]

PCB and Power-Supply Guidance

Synchronous-buck converter performance depends on layout, bypassing, and component selection:

Input Capacitor: Place a high-quality ceramic capacitor close to the VIN pin to minimize input voltage ripple
Output Capacitor: Use low-ESR ceramic capacitors for stable operation
PowerPAD™: The exposed thermal pad on the bottom of the HTSSOP package must be soldered to the PCB for proper thermal and electrical performance[reference:28]
Bootstrap Capacitor: Connect a capacitor between BOOT and PH pins for high-side gate drive
Frequency Setting: Use precision resistor for accurate adjustable frequency programming
Thermal Management: Recommended 3-inch × 3-inch 1-oz copper ground plane with 10 thermal vias (0.013-inch diameter) for optimal heat dissipation[reference:29]
Verify the recommended PCB footprint from the official datasheet before production

20-LEAD HTSSOP (PWP)

Pin Configuration Reference for TPS54312MPWPREP

TPS54312

HTSSOP (PWP) TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The PWP package has 20 pins with exposed thermal pad (Pad) connected to ground.

1 VIN Input Supply Voltage - 3 V to 6 V

2 SS/ENA Slow-Start / Enable - Enable input; capacitor to ground sets slow-start time

3 VBIAS Bias Voltage - Internal bias supply; bypass with capacitor to ground

4 AGND Analog Ground - Sensitive analog ground reference

5 RT Frequency Set - External resistor to ground sets switching frequency (280–700 kHz)

6 SYNC Synchronization - Clock input for synchronization to external clock

7 FSEL Frequency Select - Selects fixed 350 kHz or 550 kHz switching frequency

8 COMP Error Amplifier Output - Internal compensation (no external components required)

9 PWRGD Power-Good - Open-drain output, asserts when output is within regulation

10 PGND Power Ground - Power ground for the internal MOSFET switches

11 AGND Analog Ground - Sensitive analog ground reference

12 VOUT Output Voltage Sense - Connect to output voltage

13 AGND Analog Ground - Sensitive analog ground reference

14 VBIAS Bias Voltage - Internal bias supply; bypass with capacitor to ground

15 BOOT Bootstrap - Bootstrap capacitor connection for high-side FET gate drive

16 PH Phase - Switch node, connect to inductor

17 PGND Power Ground - Power ground for the internal MOSFET switches

18 PGND Power Ground - Power ground for the internal MOSFET switches

19 VIN Input Supply Voltage - 3 V to 6 V

20 VIN Input Supply Voltage - 3 V to 6 V

APPLICATION AREAS

Typical Applications for TPS54312MPWPREP

Point-of-Load Regulation

Point-of-Load regulation for high-performance DSPs, FPGAs, ASICs, and microprocessors.[reference:30][reference:31]

Broadband & Networking Infrastructure

Broadband, networking, and optical communications infrastructure.[reference:32][reference:33]

Automotive Telematics

Automotive telematics and infotainment systems.[reference:34][reference:35]

Low-Voltage, High-Density Systems

Low-voltage, high-density systems with power distributed at 5 V or 3.3 V.[reference:36][reference:37]

Defense & Aerospace Systems

Enhanced Product (EP) with controlled baseline, single assembly/test/fabrication site, and full traceability.[reference:38]

High-Reliability Applications

Extended temperature range (–55°C to 125°C) for demanding high-reliability applications.[reference:39]

REPLACEMENT GUIDANCE

Selecting an Alternative for TPS54312MPWPREP

A replacement for the TPS54312MPWPREP should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Input voltage range (3 V–6 V)

Output voltage (1.2 V fixed, 1% accuracy)

Output current capability (3 A)

Integrated 60-mΩ MOSFETs

Switching frequency (350 kHz, 550 kHz, or adjustable 280–700 kHz)

Package (20-lead HTSSOP with PowerPAD)

Temperature range (–55°C to +125°C)

Enhanced Product (EP) qualification

Family alternatives: TPS54311MPWPREP (0.9 V output), TPS54312MPWPREP (1.2 V output), TPS54313MPWPREP (1.5 V output), TPS54314MPWPREP (1.8 V output), TPS54315MPWPREP (2.5 V output), TPS54316MPWPREP (3.3 V output)[reference:40][reference:41]. For non-EP requirements with standard temperature range, consider the commercial TPS5431x series. Select based on output voltage, temperature range, and packaging needs.

Alternative Part Support

Send the original part number, application, required quantity, and key parameters to Haishengye Electronics for replacement-part sourcing support.

Ask About Alternatives

MANUFACTURER INFORMATION

Texas Instruments

The TPS54312-EP (TPS54312MPWPREP) belongs to the SWIFT™ family of synchronous-buck PWM switchers from Texas Instruments. The Enhanced Product (EP) version provides controlled baseline, one assembly/test/fabrication site, extended temperature performance of –55°C to 125°C, enhanced diminishing manufacturing sources (DMS) support, enhanced product-change notification, and qualification pedigree for defense, aerospace, and high-reliability applications.[reference:42][reference:43]

SUPPLIED BY

Haishengye Electronics

Haishengye Electronics provides electronic component stock supply, BOM sourcing, quotation support, and quality inspection services for TPS54312MPWPREP and related devices.

Submit Your Requirements

Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

TECHNICAL RESOURCES

TPS54312MPWPREP Technical Information

Specifications
FAQ
Hot Sale
Packaging
Related Products

Specifications

Product Attribute: Attribute Value

Part Number: TPS54312MPWPREP

Manufacturer: Texas Instruments

Package: 20-PowerTSSOP (0.173", 4.40mm Width)

Series: SWIFT™

Package/Case: 20-PowerTSSOP (0.173", 4.40mm Width)

Packaging: Tape & Reel (TR)

Product Status: Active

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Output Type: Fixed

Number of Outputs: 1

Voltage - Input (Min): 3V

Voltage - Input (Max): 6V

Voltage - Output (Min/Fixed): 1.2V

Voltage - Output (Max): -

Current - Output: 3A

Frequency - Switching: 350kHz, 550kHz

Synchronous Rectifier: Yes

Operating Temperature: -55°C ~ 125°C (TJ)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 20-HTSSOP

Frequently Asked Questions

1. How can I order TPS54312MPWPREP from Haishengye Electronics?

Submit an RFQ directly on this page with your required quantity, target price and delivery requirements. Our sales team will review the request and provide a quotation.

2. How does Haishengye Electronics verify the quality of TPS54312MPWPREP?

We work with qualified suppliers and review sourcing channels, traceability, packaging and product condition before shipment.

3. Are the stock and price of TPS54312MPWPREP updated in real time?

Electronic component inventory and prices may change frequently. Displayed values are references, and final stock and pricing will be confirmed in the quotation.

4. Which payment methods are supported?

Wire Transfer, PayPal, Alipay, WeChat, Credit Card, Western Union, MoneyGram and Escrow may be supported depending on the order and destination.

5. How is international shipping arranged?

International shipping may be arranged through DHL, UPS, FedEx, TNT and other logistics channels. Tracking information will be provided after shipment.

6. What is the return or replacement process for TPS54312MPWPREP?

Contact our sales team within the agreed period if there are quantity differences, incorrect items or clear external defects. Products should remain unused and in their original packaging.

7. Can I request technical support for TPS54312MPWPREP?

Yes. Contact our team for datasheets, package details, product specifications, alternative parts and sourcing assistance.

Hot Sale Part Numbers

ADXL357BEZ LT3045HDD#TRPBF LT3480MPMSE LTC3638MPMSE#TRPBF STA309A13TR ADS1282HPW LTC3805HMSE#TR LTC2851HMS8 74AHC245PW,112 ADS1282HKV/EM LT301001C ADS1294IPAGR LT3010MPMS8E MP8795HGLE-P SN74LVC8T245PWRG4 DAC8811IBDGKTG4 88E1543-A1-LKJ2C000 PTVS30VP1UP-QX LTC3787MPGN LTC6995IDCB-2 UCC33020QRAQRQ1 88E1512-A0-NNP2C000 88E1145-E1-BBM1I000 UCC 74HCT08D TPS563201DDCT TMS5703135CPGEQQ1 DAC8811ICDGKR LT3090MPMSE LTC3646IDE-1

Packaging and Shipping Protection

Step 1 Product Inspection

Step 2 Casing & Dry Pipe

Step 3 Anti-static Bags

Step 4 Inner Carton

Step 5 Shipping Label

Step 6 International Delivery

Packaging may be adjusted according to product type, quantity, moisture sensitivity and destination requirements.

TPS54312MPWPREP Procurement and Technical Support

TPS54312MPWPREP is manufactured by Texas Instruments. This page provides purchasing information including manufacturer, category, package, datasheet, stock reference, price reference and product specifications.

Haishengye Electronics supports customers sourcing TPS54312MPWPREP and related electronic components for prototype development, maintenance, NPI, production preparation and one-stop BOM procurement.

Submit an RFQ to request the latest stock, price, lead time, batch information, alternative parts, package confirmation or technical documents for TPS54312MPWPREP.

Part Number: TPS54312MPWPREP

Manufacturer: Texas Instruments

Package: 20-PowerTSSOP (0.173", 4.40mm Width)

Category: Voltage Regulators - DC DC Switching Regulators

Submit BOM RFQ Contact Sales

Payment Method

PayPal Bank Transfer VISA Mastercard Western Union

Transaction fees are charged according to the selected bank or payment system rules.

Shipping Method

DHL

FedEx

UPS

TNT

Shipped From

Shenzhen warehouse

Dispatch Time

Usually 1–3 business days after confirmation

Lead Time

Shipping Fee

Calculated according to destination and parcel weight

Get Shipping Estimate

Submitting...

Please wait while we submit your inquiry.

Comparison List

Clear All